Glow-In-The-Dark, JellyBeadZ Brand Water Bead Gel 10 Gram Pack- Blue Only Non toxic, biodegradable, enviromentally friendly expose to bright light for 15-20 minutes, will glow for hours Many uses for fun or decorations, Halloween, weddings perfect for centerpieces, any design at night for added drama lots of fun. Listing is for ONE BLUE PACKET will make about 2 Quarts